670806576 has 240 divisors, whose sum is σ = 2174964960. Its totient is φ = 197683200.

The previous prime is 670806541. The next prime is 670806593. The reversal of 670806576 is 675608076.

670806576 is a `hidden beast` number, since 6 + 70 + 8 + 0 + 6 + 576 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2142996 + ... + 2143308.

It is an arithmetic number, because the mean of its divisors is an integer number (9062354).

Almost surely, 2^670806576 is an apocalyptic number.

670806576 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670806576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1087482480).

670806576 is an abundant number, since it is smaller than the sum of its proper divisors (1504158384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670806576 is a wasteful number, since it uses less digits than its factorization.

670806576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 670806576 is about 25899.9338995296. The cubic root of 670806576 is about 875.3850065150.

The spelling of 670806576 in words is "six hundred seventy million, eight hundred six thousand, five hundred seventy-six".